Hindsight Markets / Small-cap stocks on September 9, 2026

TNON on September 9, 2026: why it ran

Published October 11, 2026 · By Hindsight Markets

On September 9, 2026, TNON opened up 2.7% from the previous close of 3.36 and reached 4.57 at 8:34 a.m. ET. The exchange halted it 2 times.

Previous close

3.36

Open, 9:30 a.m.

3.45

Gap at the open

up 2.7%

Pre-market high

4.57 at 8:34 a.m.

High, 4 a.m. to 4 p.m.

4.57 at 8:34 a.m.

Low, 4 a.m. to 4 p.m.

2.41

After-hours high, 4 p.m. to 8 p.m.

3.50 at 6:36 p.m.

Last trade before 4:00 p.m.

2.44

Volume

6.60 million

Relative volume

3.3x

Float

972,127 shares, from filings as of September 9, 2026

Shares outstanding

1.03 million

Halts

2

Why it ran

News and SEC filings for TNON published between the previous session's close and the first minute TNON traded 20% above it, at 8:34 a.m. ET, newest first, from the same feeds the replay shows.

1. 8:30 a.m. ET · Accesswire

   Tenon Medical Announces Early Repayment of Its Convertible Notes

News via Stock News API

How it traded

The shape is a fixed rule, not a judgement: gapped 10% or more at the open, ran 10% or more from the open to the high, and faded if it gave back 30% or more of that move by the close.

The day in numbers

• From news to the move: the first trade 20% above the previous close came 4 minutes after the latest news item before it (Accesswire, 8:30 a.m.).
• Volume, from the one-minute bars: 4.54 million shares before the 9:30 a.m. open (69%), 242,769 in the first 30 minutes (4%), and 1.82 million in the rest of the day to 8 p.m. (28%).
• Float rotation, the volume since 4 a.m. against the float of 972,127 shares: past it once at 8:37 a.m., twice at 8:41 a.m., three times at 8:51 a.m.
• The halt at 3:27 p.m.: down 16.1% in the 5 minutes into it, reopened at 2.82, up 1.8% from the last trade before it, then down 8.5% over the next 5 minutes.
• The halt at 3:34 p.m.: down 6.9% in the 5 minutes into it, reopened at 2.54, down 1.6% from the last trade before it, then up 1.2% over the next 5 minutes.
• Other days TNON met the small-cap rule in our recaps: 6, the latest on September 30, 2026.
• The next session, September 10, 2026, it was up 117.2% from its previous close at the 4:00 p.m. close.

Halts

On this date the LULD plan ran under Amendment 18, in force from February 24, 2020: no band doubling at the open, and the closing doubling only for Tier 1 stocks and Tier 2 stocks whose previous close was at or below three dollars. See LULD halts or work out a band with the LULD calculator.